Anticipated Problems with C7
Le Mans Master
Joined: Jul 2009
Posts: 9,526
Likes: 12
From: Los Angeles California
Safety Car
Joined: Apr 2007
Posts: 4,547
Likes: 609
From: Southeast, WI
AFM was a problem in the Gen IV engines. We'll see how well GM fixed it.
DI has potential issues with carbon build-up on the intake valves.
Rev matching is new in this application, it could have issues.
otherwise just typical build-quality stuff that gets fixed during the first couple of years of new gen vehicles.
DI has potential issues with carbon build-up on the intake valves.
Rev matching is new in this application, it could have issues.
otherwise just typical build-quality stuff that gets fixed during the first couple of years of new gen vehicles.
Melting Slicks
Joined: May 2012
Posts: 2,004
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From: Eagan MN
Le Mans Master
Joined: Dec 2006
Posts: 5,139
Likes: 482
From: H-Town Texas
There have been quite a few articles written about the LT1 that mention the enhanced, under the valve cover PCV system with oil/air separators that send the oil back to the crank case, and the gases to to the intake. This should greatly reduce carbon build-up on the valve stems. Eliminate it completely? I would be skeptical, but to reduce it enough that a top engine clean treatment every 15K miles would do the trick, would be reasonable.
Instructor
Joined: Dec 2012
Posts: 150
Likes: 33
From: Oswego Illinois
Just Wondering
Nobody is talking about this now but the price of gas has become pricey again. My Chicago land area that I live in has the highest gas prices in the country now. Will the high gas prices have an affect on the Corvette sales? Only 13,000 2013 Corvettes were sold this past year. I don't know what the gas mileage is on the 2014 Corvette, but I would think it's not that good. That being the case, I'm wondering how many people are going to buy the 2014 Corvette if the gas prices remain high.
Race Director
Joined: Dec 2010
Posts: 18,093
Likes: 1,585
Nobody is talking about this now but the price of gas has become pricey again. My Chicago land area that I live in has the highest gas prices in the country now. Will the high gas prices have an affect on the Corvette sales? Only 13,000 2013 Corvettes were sold this past year. I don't know what the gas mileage is on the 2014 Corvette, but I would think it's not that good. That being the case, I'm wondering how many people are going to buy the 2014 Corvette if the gas prices remain high.
Team Owner
Joined: Sep 1999
Posts: 41,732
Likes: 1,718
From: Springfield MO
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Team Owner
Joined: Sep 1999
Posts: 41,732
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From: Springfield MO
I agree. Last Saturday our club drove 250 miles round trip for lunch. I had to decide whether to drive my Z06(27-28 MPG) or my 64 coupe(18-20 MPG). Gas is $3.93 here for premium.
I drove the 64 even though I was spending more money for gas.
Spent $50 in gas for a $15 lunch. It was worth it. Now way would I have spent $2 to drive my Mercedes 8 miles round trip here in town, to have a $63 lunch.
I drove the 64 even though I was spending more money for gas.
Spent $50 in gas for a $15 lunch. It was worth it. Now way would I have spent $2 to drive my Mercedes 8 miles round trip here in town, to have a $63 lunch.
Burning Brakes
Joined: Sep 2008
Posts: 767
Likes: 134
From: Illinois
Then I wish BMW could resolve the DI Carbon Problem. Have a 135 09 Vert and no problems but only have 20,000 miles. Lots with higher mileage ones are going in for Walnut Shell blasting. One the list for a C7 at MSRP and hopefully Callaway.
Race Director
Joined: Jan 2000
Posts: 12,375
Likes: 406
From: Florida
Well, on a positive note... I test drove a Caddy with rev matching 2 weeks ago and it works flawlessly and is really cool. Actually, the tranny was the best part of the car.
DI has been in the 3.6 V6 for several years now with no material reported issues, so I would expect that to be fine in the C7.
DI has been in the 3.6 V6 for several years now with no material reported issues, so I would expect that to be fine in the C7.
AIR FORCE VETERAN
Joined: Nov 2009
Posts: 6,223
Likes: 441
From: Pennsylvania
I have to tell you paying $73,000 plus tax for a Corvette makes $4.00 gas a minor problem. At least the new car runs on regular unleaded. I know the Hertz C6 cars did. I saw at least two filling up near the airport in San Francisco.
Le Mans Master
Joined: Dec 2006
Posts: 5,139
Likes: 482
From: H-Town Texas
Well, not until the rise in shipping cost drives the price of everything else up, and companies start laying people off to compensate. Then sales drop and more people get laid off. Might see a slight drop in luxury sports car sales. So I wouldn't say "zero" affect. 
AIR FORCE VETERAN
Joined: Nov 2009
Posts: 6,223
Likes: 441
From: Pennsylvania
I think the major part of the recession is over, but not for everybody. The projected total auto sales in the US this year is projected to be fifteen million, if they sell 30,000 Corvettes that is two tenths of one percent..or .002 percent..
Retired Admin
Joined: Apr 2002
Posts: 46,405
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Founder St. Jude Fundraiser
No one has a crystal ball, and who cares anyway?
I'd rather get the car now and start enjoying it, and if any problems arise, I'll get them fixed
To me, that beats sitting back for a year or 2 speculating
To each his/her own
I'd rather get the car now and start enjoying it, and if any problems arise, I'll get them fixed
To me, that beats sitting back for a year or 2 speculating
To each his/her own
Burning Brakes
Joined: Jun 2004
Posts: 1,184
Likes: 3
From: KADS- If it has wings or an engine, I can break it. Dallas TX
Another C6 guy, speculating that the C7 will bomb................... Easy to fix, don't buy one.
We all know the C6 is the best car ever, always will be............ Gawd, this **** is getting old. Bring on the road test, screw the yesterdays news C6.
We all know the C6 is the best car ever, always will be............ Gawd, this **** is getting old. Bring on the road test, screw the yesterdays news C6.
Le Mans Master
Joined: Dec 2006
Posts: 5,139
Likes: 482
From: H-Town Texas
I was really being more of a smart-alic.
Thread Starter
Pro
Joined: Oct 2005
Posts: 501
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From: Columbia MD
Burning Brakes
Joined: Jul 2011
Posts: 1,027
Likes: 0
This is not meant to be a criticism of the C7 just a reality.
For the first couple years of every generation there seems to be problems. What problems/malfunctions do you see with the C7 for the first few years?
Do you think we'll have flying roofs again like we did with 2005-2006
C6 models or anything that serious?
A lot of people I've spoken with are concerned about AFM, but that technology has been around since the 90s I believe.
Thoughts?
For the first couple years of every generation there seems to be problems. What problems/malfunctions do you see with the C7 for the first few years?
Do you think we'll have flying roofs again like we did with 2005-2006
C6 models or anything that serious?
A lot of people I've spoken with are concerned about AFM, but that technology has been around since the 90s I believe.
Thoughts?
Other than that, the C7 looks like it will be a much harder car to wash & detail than perhaps any other Corvette. As there seem to be a lot more crevices for gunk to accumulate.
Tech Contributor
Joined: Mar 2003
Posts: 12,094
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From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
Meth injection steam cleans the cylinder and the build up on intake valves of carbon/deposits so for N/A applications it will have to be activated by a MAF switch.
Meth cant be injecting it into deactivated cylinders. You will have to use a hob switch to use it only under high enough load that the cylinders will be activated.
Meth cant be injecting it into deactivated cylinders. You will have to use a hob switch to use it only under high enough load that the cylinders will be activated.